Device for attaching cross-arms to telegraph-poles.



No. 882.835. PATENTED MAR. 24, 1908.

` J. E. MOGILLIV'RAY.

DEVICE FOR ATTAGHING CROSS ARMS T0 TELEGRAPH POLBS. APPLIOATION FILED JAN. 21, 1907.

2 9 wi wane/o M Magid UNITED lsTATEs PATENT oEEIoE.

JOHN E. MCGILLIVRAY, OF WALLA WALL, WASHINGTON.

DEVICE FOR ATTACHNG CROSS-ARMS TO TELEGRAPI'LPOLES.

To all whom it may concern:

Be it known that I, JOHN E. MCGILLIVRAY,

'of Walla Walla, county of Wallawalla, State the pole before rigidly securing it in position for service.

What constitutes my invention will be hereinafter s ecified in detail` andsucoinctly set forth in tffe appended claims.

In the accom anying drawings, which constitute a part of this ap lication, Fi ure I is a plan of a plate of meta from whic preferably, my device is to be cut and struck out.

`he upper part of the plate is shown as cut away to form the top lugs of the fixture, the line for the crease and cut to form the shelf and bottom lug being indicated by dotted lines. Fig. IIis a pers ective view showing my fixture complete, t e bottom lug being struck out and the shelf bent up at right angles thereto. Fig. III is a perspective view illustrating my fixture applied to a section of a cross-arm and looking at it from below, the main bolt being shown in place, and the parts of the fixture obscured by the cross-arm being shown in dotted lines. Fig.

IV is a view similar to Fig. III but looking at the cross-arm4 and fixture from above, and illustrating also a section of the pole to which the cross-arm and fixture is, by intervention of the main bolt, secured. Fig. V is a vertical section of a portion of the subject matter of Fig. IV, taken through the center of the fixture and showing the main bolt and top and bottom lag-screws in elevation, one of the lateral lag-screws and one of the lateral bolts being shown in dotted lines so far as obscured by the body of the cross-arm..

Referring to the numerals on the draw ings, 1 (compare particularly Figs. I and II) is the body part of my fixture, which is made, preferably, of a plate of N o. 12 gage steel, although the weight of the metal employed may be varied, at will. From opposite sides of the bod part proceed lugs by whichthe plate may be secured to the pole. It is pref- Specication of Letters Patent.

Application filed January 21, 1907.

Patented March 24, .1908. serial No. 353,273'.

erably provided with an upper medial-l 2 and two upper lateral-lugs 3 and 4. l'Ighe upper lugs 2, 3, and 4, are formed from the body of the plate by recesses 5 and 6 cut out of the metal. A medially disposed lower lug 8 is cut, as by a die, from the body of the plate on three sides 9, 10, and 11, while from the body of the plate, along the line 12, the portion of the plate severed along the lines 9, 10, and 1 1, is struck up at right angles to the body portion 1 of the plate to form a shelf 15. Each of the lugs is provided with a screw hole, indicated, respectively, by numerals 16, 17, 18, and 19, while the shelf 15 is provided with two screw-holes 20 and 21. The body part 1 of the fixture is penetrated b a single medially located screw-hole 22 for t e accommodation of a main bolt 23, which in practice unites the cross-arm 24, pole or supporting-member 25, and the intermediate fixture as clearly shown in Fig. IV of the drawings. The apertures 16, 17, 18, and 19 are, in service, lled with lag-screws 26 27, 28, and 29. 30 and 31 indicate lateral-bolts, Which, introduced through the apertures 20 and 21, respectively, serve to rigidly unite the crossarm .and fixture.

In practice, the fixture is first attached to the cross-arm 24' by means of the bolts 30 and 31, introduced through their respective apertures 20 and 21, the bolts being firmly secured in place by their respective nuts. In this position, the body part 1 and the lugs 2,

3, 4,.and 8, respectively, are located in the same plane, which is at right angles to the lane of the shelf 15, as shown 1n Fig. II. Ihe cross-arm, with the fixture attached in the manner last specified, is ready to be secured to the pole 25, Which is accomplished, initially, by means of the main bolt 23 that passes through the pole 25, cross-arm 24, and intermediate fixture, as shown in Fig. IV, apertures to correspond to the aperture 22 being provided in the several members referred to for the accommodation of the bolt 23. The securing together of thecross-arm 24, intermediate fixture, and pole 25, is securely effected by the introduction, through the apertures provided for it in the severa members, of the bolt 23, but without-other rovision the cross-arm may turn upon the olt 23 as an axis, the fixture, havmg its body part and lugs in-the same plane, offering no resistance to said movement, but merely constituting, in effect, a flat washer between understand and to construct the same.

the cross-arm 24 and its pole l25. Next, in respectively, the lateral lugs .being adapted order to secure the cross-arm fixedly yto the to be bent ack and secured to the pole.

ole as required in service, the arm is first eveled andA is then fastened by the insertion of the lag-screws 26 and 29, through the lugs 2 and 8, respectively, into the pole 25, the apertures 16 and 19, which receive said lagscrews bein substantially in vertical alinement with t e-aperture 22, which accommodates the main bolt 23. After the relative positions of the cross-arm andpole have been obtained by the insertion of the la -screws 26 and 29, as specified, the lugs 3 an 4 are then bent or driven back against the face of the pole 25 andl lagscrews 27 and 28 are inserted, through the apertures 17 and 18 therein, into the body of the pole. When all the parte, in the manner s ecified, are secured, the crbssarm is secure y braced 'to the pole in proper relative osition and with the required resistance to isplacement sufficient to counter-act all usual strain in service.

The foregoing s ecification is deemed to be sufficient to enab e one skilled in the art tIo t ma however, be not amiss to add that the wi th of the fixture is approximately the average Width of the pole top, and fixtures may run in sizes to accommodate poles of dierent dimensions. The width of the shelf15 preferably corresponds to the Width of the cross-arm, which it is designed to support and the hei ht above the shelf is preferabl substantialy equal to the length of the s elf, or in other words, the width of the fixture.

It has been specified thatI the fixture is preferabl made of sheet metal in the manner speci ed. Such method of construction is preferred for the sake of economy, but it is obvious that the essential features of the device'would be present in an construction in, which the body part 1, wit its lugs 2, 3, 4,l and 8 are initially disposed at right angles to each other, the lugs 3 and 4 being of a flexibility which permit of their being bent back into position to enable them to \erform their respective functions after the fixture has been trued to position for employment in service.

What I claim is:

1. A device of the kind described, comprising a plate provided with a body part, up er and lower lugs in the same plane, and a s elf located substantially at right angles thereto, whereby it ma be assembled and adjusted with other devices, substantially in the manner specified.

2. A device of thel kind described, comrising a body part, upper and lower medial ugs, lateral lugs lying in the same plane, and a shelf locate substantially at ri ht angles v thereto, the body part, lugs, and s elf being provided with apertures, whereby the device may be secured to a cross-arm and to a pole;

3. A device of the kind described, comprising a lbody part and lugs in the Same plane and'a shelf substantially at right an les thereto, the said body part, lugs, and s elf being provided with apertures for the several reception of members for securing theA device to a cross-arm and to a pole, in service, substantially as set forth.

4. A device of the kind described, compris/ing a bod part, shelf and lug made of sheet metal, t e lug and shelf being cut one from the other, and the shelf struck up at right angles to the lug and body part.

5. A device of the kind described, comprising'a body part, shelf, and lug'made of sheet metal, the body part and lug being in the same lane, and the shelf being at right angles to t e body part and lug.

6. The combination with a telegraph pole and a cross-arm, of an intermediate fixture adapted to rest against the surface of said pole, means for securing said fixture to the cross-arm and to the pole, and additional melans for directly securing the fixture to the po e.

7. The combination -with a telegraph p ole and a cross-arm, of an intermediate fixture adapted to rest against the surface of said pole, means for securin said fixture to the cross-arm and to the po e, said fixture being provided with laterally disposed lugs, an means separate from said lugs for securing the same to the pole.

8. A device of the kind described, comprising a body part adapted to be secured to a cross-arm, and to present when so secured a fiat surface against a telegraph pole, and means for securing said body part to the pole.

9. A device of the kind described, com ,prising a body part provided with a medial aperture for the reception of a member for initially securing the device to a pole, and additional means for securing the device fixedly to a pole.

10. A devlce of the kind described, comprising a body part ada ted to be secured to a cross-arm, of means or initially securing the device to a pole adapted for the purpose of first levelin the cross-arm, and means for. securing the evice after its initial adjustment fixedly to a pole.

. 11. The combination with a telegraph pole and a cross-arm, of a single intermediate fixture, means medially located with reference to said fixture for initially securing the cross- `arm and fixture to the pole, and additional of' means for uniting said members, means for initially leveling the cross-arm and the other for fixedly securing the parts together. i

f3. The combination with a telegraph pole and a` cross-arm, of a. fixture for uniting them together, means for initially uniting. for purposes of adjustment, the pole, crossai'in, and fixture, and means for fixedljv se curing those members together after adjustnient.

14'. The combination with a cross-arm and fixture united thereto, of' a teleefra ih iole,

one to the pole being respectivelyv complete and self-sufficient.

lt. ln a device of the kind described, the combination with a fixture adapted to be secured to a cross-arm, and means serving to hold the cross-arm and fixture i'ieldably to a pole so as to provide for subsequent adjustment or leveling of' the fixture preparatory to the final fastening of fixture to pole.

f7. 'lhe combination with a cross-arm and fixture of a teleefra ih iole, means servinfr to means for initially uniting the arm and atj taehed fixture to the pole f'or the purpose of' adjustment, and means for fixedly securing j j signed my naine in the presence ofl two subsaid members together after adjustment.

l5. A device of the kind described, coniprising a body part adaptedto be secured `to a cross-arm, inedially disposed means for securing it to a telegraph pole, and laterali)Y disposed additional means for securing it to the pole, both means for securing the device hold the cross-arm and fixture vieldabljY to the pole so'as to provide for subsequent adjustment or leveling of the fixture preparator)v to the filial fastening of fixture to pole.

ln testimony whereof l have hereunto scribing witnesses.

JOHN E. MCGILLH'KAY.

Wi t nesses:

It. M. PALMER, C. E. Piiiio'r. 

